It is quiet to see and I believe that all of us commit mistakes, a situation that also changes our gambling approach and behavior.
Of course, it is not in our mind and we try to avoid mistakes but still, it comes to us no matter what we do. But this thing sends us a message that every mistake we make has a positive result and one thing is that we improve and change our style to a better one. We could just think that we have to limit our gambling time, stop being greedy, and avoid addiction because we already know the outcomes as it happened to us in the past and we don't let it happen again.
Therefore, I would say that we don't have to be afraid of committing mistakes because this also helps us to see things that we need to change and become a responsible gambler.
Well, I've seen people appreciating failure and now in your case, it is a mistake, but if care is not taken, you will be gullible about them and think you are still doing yourself a favour. For me, there is no way I will entertain mistakes or failures, but if they happen, I will take them as a preparatory step but will frown so much at them and at myself for that matter. Then I will try to improve myself and make sure that I do not fail again the next time or make any mistakes. If that is what you meant, then you are on the right path. But you made it look so relaxed as if one must make mistakes and think less of it before they can be responsible in gambling, which is not supposed to be so. The avoidance of what is wrong starts immediately without procrastinating it in the name of it helping you, you help yourself immediately by being bitter with it but make a change immediately.
Now, let me establish a little difference, in gambling, if you lose, you may not make any mistakes, you might just lose because the luck is not on your side or your strategy is faulty having done what you needed to do. In this case, if anyone continues to pamper this, it could be an issue, as the overhauling of the trading strategy might be the solution as no mistake was made. And don't forget, this is money we are talking about, it is painful wasting it just like that, so why make a mistake or bet when you are not ready? I think we should get ready before we do that and any mistakes made should not be an excuse to the point that we will now be giving it some kind of appraisals the way you make it look.
My gambling philosophy is; "Let's be decisive before we bet and wait if we are not ready." No one is rushing us.